Concept explainers
To discuss:
The renin-angiotensin-aldosterone mechanism of regulating GFR; multiple effects of angiotensin II on the kidney and on the rest of the body.
Introduction:
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ANATOMY & PHYSIOLOGY V1. W/CONNECT
- The long-term regulation of arterial blood pressure is controlled by the Renin-Angiotensin-Aldosterone system (RAA system). Explain how the activation of the RAA system is initiated.arrow_forwardtrue or false Aldosterone is required to restore water from loop of Henle, and reabsorption of Na+ from this segment is increased by ADH, allowing equilibration of water with the hyperosmotic interstitiumarrow_forwardWhat happen to the cortical and medullary duct value in the absence of vasopressinarrow_forward
- How the kidneys metabolize carbohydrates, lipids, ans proteins and the effects that these three micromolecules have on renal functions. Examine how the gross and histological structure of the kidney facilitates urine production during 1) glomerular filtration, 2) tubular reabsorption, and 3) tubular secretion.arrow_forwardTrue or false When a substance gets actively reabsorbed, ATP is spent to power the movement of that substance without any carrier molecule from the nephron back into the blood stream. (explain why)arrow_forwardDiabetic nephropathy typically does NOT present as hematuria. Come up with a hypothesis why not (hint: this should involve the filtration membrane).arrow_forward
- Describe the renin-angiotensin-aldosterone system. State the function of this system. State how this system helps to control plasma Na+ concentrations and blood pressure.arrow_forwardPerson suffering from very low blood pressure pass no urine why? What suggestion would you offer for the removal of waste products from the blood in such a situation.arrow_forwardTrue or false sodium potassium and chloride are filtered out of the blood into the renal tubular then selectively re-absorbed into the bloodstream to carefully regulate blood volumearrow_forward
- Reabsorption of this chemical is a saturable process - inulin - bicarbonate - glucose - creatinine - calcium - adenosine - chloride - renin - aldosteronearrow_forwardThe ________mechanism of regulation of the GFR reflects the general tendency of vascular smooth muscle to contract when stretched a) tubule-glomerular b) myogenic c) neural e) hormonalarrow_forwardWhich of the following is a cause of metabolicacidosis?a. excessive HCl lossb. increased aldosteronec. diarrhead. prolonged use of diureticsarrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning